Ice-cutter.



110.728,555.. PATBNTED MAY'19,1903.

J. DUGHARME..

ICB GUTTER APPLIOATIOH `FILED JAN. 16, 1903.

. 4Iii-MODEL.

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W/ TN E SSE S:

o.. Fuero-um UNITED STATES Patented May 19, 1903.

PATENT OEEICE.

JOHN DUCHARM, OF BOSETON, NEW YORK.

applicati@ filed January it, 190s.

i T all whom it may concern/.v

Be it known that I, JOH DUOHARME, a subject of the King of GreatBritain, and a resi-Q dent of Roseton, in the county of Orange and Stateof New York, have invented a new andv Improved Ice-Cutter, of which thefollowingl secured upon the aXle 10, extending up is a full, clear, andexact'description.

My invention relates to machines for cutting ice upon the field; andthevpurpose of the invention is to provide a machine which ismotor-propelled and in whichy the saw is driven from the motor.

Another purpose of the'invention is to` mount the forward portion of themachine upon runners and to provide such'portion of'. the machine withbull or toothed supportingwh'eels for engagement with the ice in addi-Ition to the runners and means for quicklyraising the forward portion ofthe frame, the

rear portion trailing upon the ice, whereby4 the-bull or toothed Wheelsmay be carried upward from the ice to enable the machine to be readilyturned around.

Another purpose of the invention is to provide simple andconveniently-operated means for elevating the saw, which saw is at theback portion of the machine.

The invention consists in the novel construction and combination of theseveralA parts, as will be hereinafter fully set forth, and pointedoutin the claims.

Figure 1 is a side elevation ofthe improved machine, and Fig. 2 is aplan view of the same.

A `represents a platform of any form', preferably rectangular, and Brepresents an engine or a motor, which is duly mounted onthe platform. Adrive-shaft 10 is journaled in bearings 10a, located `at the front siderpor-V tions of the platform in front of the engine or motor B, and thisshaft 1'0 is provided with a crank-arm 11, and the piston-rod 12 of the`serai 110.1392295. l N0 mode.)

'i platform A at its front end, and traction- 4wheels 16 are secured tothe said axle, the

peripheral portions of which wheels are *i toothed, so that -the said'wheels may have purchase onthe ice. .Adjacent to the righthandtraction-Wheel 16 a larger pulley 16a is through a suitable opening 172Lin the platform, and a driving-belt 17 is passed over the upper pulley14 and around the lower and larger pulley 16, whereby when thedriveshaft lO'is operated the traction-wheels 16 will be rotated.

Near the right-hand end of the drive-shaft 10 a large pulley 18 issecured, and at the rear o f the engine or motor B a transverselyelocated line-shaft 19 ismounted in bearings 20, secured to the platformA. On this lineshaft `19 a small pulley 21 is secured, together with alarger pulley 22, the latter being ad-v jacent to the left-hand end ofthe said lineshaft. The pulley 21 is connected by a belt .23 with thepulley 18 on thedrive-shaft 1,0.

A beam 24 at its forward end is pivoted in suitable standards 25,carried upward from the platform A, and at lthe rear or free end of thebeam 24 a standard 26 is attached,pref erably in the form of a yoke, anda pulley 27 is supported at 4the upper end of the said standard. y

A rope, chain, or cable 28 is attached in any desired manner tothe freeend of the beam 24, andV this rope, chain, or cable is passed over thepulley V27 andfrom thence'downward to a drum 29, mounted to turn insuitable bearingsat the rear end of the'platform A. It will beunderstood that the said drum is provided with the usual'ratchet-and-pawl device and is adapted to be turned by hand through themediuml of a suitable crankhandle, as shown. 'The beam 24 when adjustedis prevented from leaving its adjusted position in any approvedmanner-as, for eX- ample, by passing a pin through apertures in the yoke26and inthe said beam.

' A bearing 30 is secured to the under face of the beam 24, midway ofits ends, and in the said bearing a shaft 3l is mounted to turn',`

drawn and make a kerf in the same, while at the opposite end of theshaft 3l a pulley 33 is secured, and this pulley 33, which is smallerthan the pulley 22 on the lineshaft 19, is connected with said pulley 22by a suitable belt 34. The saw C extends above and below the platform A,a suitable slot 32 being made in the platform to permit of the upwardand rearward passage of the saw.

lt will be observed that by means of the windlass or drum 29 the beam 24may be raised and lowered, so as to carry the saw C out of possibleengagement with the surface over which the machine passes or permit thesaw to enter the said surface to the desired extent.

It will be observed that the rear portion of the platform is notwheel-supported and that it rests upon the ice; but at the forward endof the platform A runners E are employed to support the platform inaddition to the traction-wheels 1G. These runners E have a slidingconnection at their upper forward ends with the platform, whichconnection is made, preferably, by attaching slotted plates 39a to theplatform and passing pins 39h from the runners loosely through the slotsin the said plates, so that preferably the forward ends of the runners Ehave a pivotal connection with the forward end of the platform A.

When the machine is to be turned,it is necessary that thetraction-wheels 16 should be raised out of engagement with the ice. Tothat end a toggle connection F is provided between the rear ends of therunners E and the platform A, as is best shown in' Fig. l, and suchtoggle connection consists of two links, one pivoted to a runner and theother to the platform, and pivot-pins connecting the said links. Thetoggle. F at the righthand side of the machine is provided with aconnecting-rod 37, attached to its pivot-pin,

and this connecting-rod is carried rearward and is pivotally connectedwith a crankarm 3b, carried by a hand-lever 35, suitably mounted on theplatform, and a transverse rod 3S is shown attached to the connectingbar37, which rod 38 is provided with a branch 38, extending forwardly andlongitudinally of the platform to an engagement with the pivot-pin ofthe left-hand toggle F, as is shown 'in dotted lines in Fig. 2, so thatunder this construction by moving the lever 35 in one direction thelinks of the toggles F are straightened and the platform at its forwardportion is raised, carrying the traction-wheels from engagement with theice and leaving the runners E the sole supports for the forward end ofthe platform. Whenever it is desired to propel the machine by the engineor motor B, the lever 35 is moved in a reverse direction and the linksof the toggle F are carried rearward at right angles to each other,permitting the platform to drop sufficiently to enable the teeth of thetraction-wheels to engage with the ice.-

The operator is stationed, preferably, on the platform at any point tothe rear of the exigirle or motor B.

At each side of the platform A a marker D is pivoted. These markers areof the usual or of any approved type; but cach marker has pivotallyattached thereto a rod 39, and these rods extend in direction of eachother over the platform A and are both pivoted to lthe lower end of alever 40, suitably mounted on the platform A, which lever is providedwith the usual thumb-latch 41 to engage' with a rack 42 of any approvedtype.

lt will be observed that when the lever 41 is in a central position themarkers will be out of engagement with the ice; but if the lever isdrawn to the left, for example, the left-hand marker will be brought inengagement with tl1eice,while the righ t-hand marker will be raised, andvice versa.

A clutch 43 is carricdby the drive-shaft 10, and this clutch is adaptedfor engagement with the hub of the driving-pulley 1S and is operatedthrouglrthe movement of a lever 44, the handle of which may point eitherforward or rearward, as may be desired; but in the drawings the saidshiftingdever 44 is shown pivoted upon a support attached to the engineor motor frame 45 and its handle extends in direction of the front ofthe machine.

I desire it to be understood that the frame or bed of the machine canbecurved more or less downward from the bearing of the saw in a rearwarddirection to permit better adjustment of the saw and to provide a betterbearing for the rear of the frame to trail upon the ice.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. In an ice-cutter, a platform, a motor carriedthereby, traction-wheels mounted underneath the forward portion of theplatform to support said portion always above the ice, the rear portionof the platform being designed to trail upon the ice, a drivingconnection between said traction-wheels and said motor, a beam on therear portion of said platform disposed longitudinal thereof,\said beambeing pivoted at its forward end to said platform, a saw carried by thecentral portion of said beam and adapted to extend downwardly throughthe platform, means for raising and lowering the free end of said beamand for supporting the same in its adjusted position to regulate theposition of the saw, driving connections between the saw and the motor,runners pivoted-at their forward ends to the platform at a point inadvance 0f the traction-wheels and extending rearwardly beyond saidwheels, an operating-lever, and means for connecting said lever with therear ends of the runners for raising and lowering the same.

2. In an ice-cutter, a platform, tractionwheels mounted underneath theforward portion thereof to support said portion always IOO IIO

above the ice, the rear portion of the platform being designed to trailupon the ice, runners pivoted at their forward ends to the platform at apoint in advance of the traction-wheels` and extending rearwardly beyondsaid wheels,

links between the rear ends of said runners ing-rods pivotally connectedto said links at their points of union with each other, and a lever foroperating said connecting-rods to bring said links into line with eachother to spread the rear ends of the runners from the platform toelevate the forward portion thereof and cause the same to be supportedon said runners, as set forth.

3. In an ice-cutter, the combination with a platform, runners havingsliding connection at their forward ends with the said platform,traction-wheels carried by the said platform at its forward end, a motorupon the said platform, a drive-shaft driven from the said motor, adriving connection between the said drive-shaft and the tractionfwheels,links pi votally connected with each other and pivotally connected withthe runners and the platform, connecting-rods pivotally connected withthe said links, a lever for operating the said connecting-rods, aline-shaft, a driving connection between the line-shaft and the drivenshaft, a saw extending through the platform, an adjustable support forthe said saw, and a driving connection between the saw-spindle and thesaid line-shaft, substan-` tially as described.

4. In an ice-cutter, the combination with a platform, runners havingsliding connection at their forward ends with the said platform,Ifraction-wheels carried by the said platform at its forward end, amotor upon the said platform, a drive-shaft driven from the said motor,a driving connection between the said drive-shaft and thetraction-wheels, links pivotally connected with each other and pivotallyconnected with the runners and the platform, connecting-rods pivotallyconnected with the said links', a lever for operating the v saidconnecting-rods, a line-shaft, a driving connection between theline-shaft and the drive-shaft, a saw extending through the platform, anadjustable support for the said saw, a driving connection between thesaw-spindle and the said line-shaft, markers pivotallyconnected witheach side of the platform, rods pivotally connected with the markers andextending in direction of each otherover theplatform, a lever pivotallyconnected with the inner ends of said rods, and a locking device forsaid lever, as described. y

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

.hi JOHN s DUCHARME.

JN0. M. RITTER.

